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4G Eclipse GT/SE Specific 3.8L V6 (6G75) Specific Forum


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Old June 23rd, 2016, 05:39 PM   #1 (permalink)
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Turbo GT

[Just skip to the bottom if you'd like to skip the theatrics]

"GO USE THE SEARCH BUTTON!"
"GO READ A SOMETHING!"

Yes, this is most likely what you are thinking; another thread about some newbie kid wanting to turbocharge his V6 Eclipse- and you'd be correct, because I do! But I digress. That is not the point of this thread. This is not the usual, "hey gusy, I wnat to put a turbo in my car to get 1700whp and beat gtrs, how do u instal a tubro?" I've spent countless hours reading threads on here at my office (because, why would I actually work?), so I've developed a DECENT understanding of the 6g75 platform, as well as turbocharging in general, but I am not the All Knowing Eclipse God by any means.

I don't want to know how to turbo the Eclipse; I know how. You run the pipes from the thing to the thing, through a thing, upgrade your doohickey, tune that bitch up, and your good (I actually have a decent good understanding of how it works, and I'm assuming you do as well, so there's no real reason to talk about the logistics of turbocharging a car, regardless of it's make).

What I want to know is why there aren't many turbo GT's. Yes, there are a few of them- from what I've read, about 4 people have attempted it. 1 succeeded, and is still going. Another 2 succeeded, but proceeded to take them out. 1 said it was all finished up, then just disappeared. (Apologies if I forgot any)

Why haven't more people attempted it? Is it because there is no readily available "bolt-on" turbo kit, and nobody really wants to put the time and effort into making their own set up? Is it because there's not much space under the hood, so even those who have the time, money, and know-how don't want to attempt it because it's complicated? Like what is holding us back?

Everyone with superchargers and nitrous, as well as the one turbo GT still running around have shown that F/I can make the GT badass, and I've read through a lot of the big build threads on here- there's a lot of people with the resources and knowledge to take on a big turbo build. As for the money part of it, I feel as if it wouldn't be THAT expensive if you could do the lions-share of the labor yourself (and yes, a lot of people do have big ass shops, and access to necessary equipment). I've personally been offered assistance in undertaking a build- a former coach of mine works for Wagstaff, an industrial manufacturing company, and has access to basically any equipment anyone would ever need for anything- but I have declined because the bank owns my car, and I'm in college (in other words, broke), and I really don't have enough brain to throw at it at this point.

Or is it simply that people would rather just spend there money on a more mod-friendly (and better in general) car?

So yeah. In a nutshell, what are the barriers to turbocharging a V6 Eclipse (yes, I've read the threads about this, but they kind of all collapse like a flan in a cupboard after everyone says, "FUCKING SEARCH NEW GUY JESUS BALLS IN FUCK"). Why don't many people do it, why did those who did it stop, etc. Lack of space, motivation, money, knowledge, tuning? I JUST WANT TO KNOW HOW THE PEOPLE THINK!
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Old June 24th, 2016, 06:34 AM   #2 (permalink)
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You kind of hit on the main points. The Eclipse, especially the 4G, is severely lacking in aftermarket support. You can find all the parts, but in the end you have to really Frankenstein it together and for most people that ends up being too much work and too much money. For me it was the lack of aftermarket support when it came to performance mods that made me switch to the Evo. Why spend all that time and money turboing a FWD car that already spins the tires through 3 gears when I could just go out and buy an AWD turboed Evo and be able to run over 25 PSI stock? If you do turbo the 4G you need to build the motor, it won't hold more than 5 or 8 PSI otherwise (saw somewhere on a thread about the RIP supercharger). To me, 5-8 PSI is nothing, lol...If I turbo it I want to be able to use that new boost. There have been a few to make the 4G AWD and turbo, pioneers really, but they needed a lot of custom parts and fabrication to make it work. It is possible, but it would take time, money, and research. If you really wanted to I'd reach out to someone who has done it and ask for a parts list. That would give you a good head start on what you need.
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Old June 24th, 2016, 06:52 AM   #3 (permalink)
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3.8 6G75 Swap Discussion - Page 4 - Club3G Forum : Mitsubishi Eclipse 3G Forums
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Old June 24th, 2016, 11:00 AM   #4 (permalink)
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It frustrates me so much how lacking the aftermarket support for the 4G is. It's such a gorgeous car, and it's made to go fast... it's just not made to go fast.
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Old June 28th, 2016, 10:33 PM   #5 (permalink)
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It frustrates me so much how lacking the aftermarket support for the 4G is. It's such a gorgeous car, and it's made to go fast... it's just not made to go fast.
You have fitment fitment and fitment as being the 3 biggest reasons it's not that popular. I found a rear mounted turbo kit worked surprisingly well but even that had challenges in fitment. As with most V6 setups, supercharge it and be done with it.

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Old June 29th, 2016, 08:46 AM   #6 (permalink)
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From all the reading I have done for a while now, supercharger is by far the easiest way to go. Only if it didn't cost a damn arm and maybe 2 legs to get a complete kit lol.
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Old June 29th, 2016, 09:20 AM   #7 (permalink)
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From all the reading I have done for a while now, supercharger is by far the easiest way to go. Only if it didn't cost a damn arm and maybe 2 legs to get a complete kit lol.
I think for a supercharger kit complete $3500-$4000 is a reasonable price. For a turbo kit on a GT $6000-$8000 is reasonable. Individuals can obviously piece and fab a kit themselves for less but if you wanted a complete bolt-on affair with quality parts then these are the cost plus a moderate amount of profit the supplier needs to make.

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Old June 29th, 2016, 12:17 PM   #8 (permalink)
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Putting a equal or greater cash investment into your car than what it's worth may seem a bit silly. The GT is fast, but isn't popular (or still in production), so naturally there'd be little interest from aftermarket manufacturers to make parts for it. And really, how much power could you get away with on a heavy, poorly balanced FWD car? Stock output is already pushing the limit imo, wheelspin is just a thing you have to live with in a GT.

Also, seeing how well these cars respond to bolt-ons, only the truly dedicated/power hungry would turn to boost. Personally I wouldn't, but not saying you shouldn't. It just doesn't make much sense in my eyes.
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Old June 29th, 2016, 12:27 PM   #9 (permalink)
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I think down the road I'm just going to go nitrous. Relatively cheap, relatively reliable/safe, and pretty decent gains. I'm hoping by the time I have enough money to dump into a car, there will be a new one on the market that just calls my name.
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Old June 29th, 2016, 01:21 PM   #10 (permalink)
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If you've ever seen F&F:1, you know full well what NOS can do to manifolds and floor pans. User beware lol
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Old June 29th, 2016, 01:24 PM   #11 (permalink)
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If you've ever seen F&F:1, you know full well what NOS can do to manifolds and floor pans. User beware lol
I'm too big of a poon to run big shot. Won't be blowing anything up anytime soon. lol
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Old July 4th, 2016, 08:11 AM   #12 (permalink)
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I wouldn't call nitrous safe. It's relatively inexpensive to install but dollars for horsepower you spend it on filling bottles. With a supercharger it uses air and air is free. Higher up-front cost but more reliable and cheaper in the long run.

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Old July 5th, 2016, 06:31 PM   #13 (permalink)
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That's kit hasn't been available for like 6 years now.... Custom or go home! Michal you guys should make another version of that kit with rotrex superchargers!

You can use my car again!
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Old July 6th, 2016, 10:21 PM   #14 (permalink)
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I had an Eaton M62 supercharger with a 3.1" pulley sitting in my garage for awhile. It was good for 12psi on my 2.2, would've been interesting to see what it could've done for our cars.
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